Maher, Ann Butler
W.B. Saunders , 2002
Buku Teks SO
Powell, Mary
E. & S. Livingstone, 1970
Buku Teks SO
Malinzak, Robert A.
McGraw-Hill, 2006
Buku Teks SO
Farrell, Jane
J.B. Lippincott, 1986
Buku Teks SO
Rodriguez-Gonzalez, Federico Angel
ASM International, 2009
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